Could flickering stars be messages from ET?

Could the flickering and winking of some stars be a kind of Morse Code that extraterrestrials are using to communicate across space? Princeton University astrophysicist Lucianne Walkowicz and her colleagues are exploring that very question. Her team is using algorithms to sift data from the space observatory Kepler for flickering patterns that don't appear to be the result of passing planets, sunspots, eclipses, or other known reasons. “What would lead us to say it really is an alien signal?” she asks. “I don’t know, but in my book, finding things you can’t explain is interesting no matter what it is. And just to be clear, this has nothing to do with the star twinkling that we see, caused by atmospheric turbulence on Earth. Or so they'd like us to think.

R1: where's your sense of adventure?
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